CN108263202A - A kind of more type range extender engine cooling devices - Google Patents
A kind of more type range extender engine cooling devices Download PDFInfo
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- CN108263202A CN108263202A CN201711341651.7A CN201711341651A CN108263202A CN 108263202 A CN108263202 A CN 108263202A CN 201711341651 A CN201711341651 A CN 201711341651A CN 108263202 A CN108263202 A CN 108263202A
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- range extender
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a kind of more type range extender engine cooling devices, are related to new energy field.More type range extender engine cooling devices include radiator, electronic fan, expansion tank, cockpit heater, electronic water pump, check valve and pipeline, and can be controlled by the controller working method.The cooling circuit separate configurations, i.e., each type range extender engine are respectively equipped with a set of radiator, electronic fan, expansion tank and cockpit heater, can realize efficiently cooling according to the different demands of two type range extender engines.More type range extender engines can realize that a type range extender engine works independently or more type range extender engines work together, in the type range extender engine started after the high temperature coolant of the type range extender engine first started is introduced into when more type range extender engines work together simultaneously, shorten the engine prewarming time, it is energy saving.
Description
Technical field
The present invention relates to new energy field more particularly to a kind of more type range extender engine cooling devices.
Background technology
Increasingly become urgent current in energy problem, as the requirement of vehicle energy-saving and emission-reduction is higher and higher, new energy vapour
The exploitation of vehicle is more and more urgent, and Development of EV be can yet be regarded as a good outlet.Electric vehicle is pollution-free, and noise is low and the energy
It is efficient.Particularly in city operations, automobile loiters, and travel speed is not high, and electric vehicle is more suitable.
But pure electric automobile course continuation mileage is limited at this stage, the short life of battery, energy storage capacity is small, is travelled after primary charging
Mileage is undesirable, therefore the exploitation of stroke-increasing electric automobile is imperative.It is advanced during type range extender engine is run
Cooling device is the pith of its energy-saving and emission-reduction design.
Existing list type range extender engine Power coverage range is larger, it is difficult to which it is all efficient operation to accomplish all operating points
Area, correspondingly, since single type range extender engine cannot be guaranteed all operating points in efficacious workaround in itself, so causing its cold
But device is as even if meet the radiating requirements of engine, as engine is not in efficacious workaround and up to
To optimal cooling effect, so as to affect the utilization of the operation of vehicle and output power.
Nowadays arrangement is more and more compacter, while the demand bigger of heavy truck and motorbus to electricity consumption, therefore in weight
It is more likely to that two or more distance increasing units is selected to mend as the energy of power battery in the selection of the distance increasing unit of card and motorbus
It gives.When coolant is cooled down, amount of heat can be absorbed, these heats are not utilized well, are put into cooling device
Middle cooling so that these heats scatter and disappear in vain in cooling procedure.Especially in the cooling of more distance increasing units, needed in preheating
Even multiple coolant twice is heated, dispersed heat is more, does not reach the requirement of energy-saving and emission-reduction.
Invention content
The purpose of the present invention is to provide a kind of more type range extender engine cooling devices, in order to meet energy-saving and emission-reduction
Demand, and the efficiency of cooling device is maximized, therefore the present invention proposes that a kind of more distance increasing units with preheating circuit start
Machine cooling device, concrete scheme are as follows：
A kind of more type range extender engine cooling devices, including：First coolant circulation loop, the second coolant circulation loop
And preheating circuit.
The first coolant circulation loop includes the first cooling circuit and the first warm wind circuit, first cooling circuit
For the first type range extender engine to be given to cool down, the first warm wind circuit is used to provide warm wind to cockpit.
The second coolant circulation loop includes the second cooling circuit and the second warm wind circuit, second cooling circuit
For the second type range extender engine to be given to cool down, the second warm wind circuit is used to provide warm wind to cockpit.
The preheating circuit includes check valve and electronic water pump, and the electronic water pump can be by the first coolant circulation loop
In high temperature coolant be pumped into the second coolant circulation loop, shorten the preheating time of coolant.The cooling circuit includes
Thermostat, radiator, electronic fan and expansion tank, the warm wind circuit include thermostat and cockpit heater.
Cooling circuit realizes efficiently cooling to type range extender engine, and warm wind circuit is cockpit when cockpit temperature is relatively low
Warm wind is provided.
Further, the first coolant circulation loop is provided high by electronic water pump to the second coolant circulation loop
Warm coolant preheating, the second coolant circulation loop provide the cold of mixing temperature by check valve to the first coolant circulation loop
But liquid forms preheating circuit, the preheating time of the type range extender engine started after shortening.
Two type range extender engines are connected by pipeline, and the electronic water pump and check valve shared in pipeline is controlled and cooled down
The flow direction of liquid so that form preheating circuit between two type range extender engines.
Further, further include controller, for according to the power demand of vehicle start a type range extender engine or
Start two type range extender engines, select the working method of more type range extender engine cooling devices.
Further, when the type range extender engine coolant temperature started in the ban is increased to set temperature, controller starts
Electronic water pump and open check valve, preheating circuit are opened.When after startup type range extender engine coolant temperature be increased to setting
During temperature, controller closes electronic water pump and check valve, and preheating circuit is closed, each type range extender engine coolant circulation loop
It works independently, improves cooling efficiency.
Further, during the warm wind loop works, the high temperature coolant in type range extender engine can enter cockpit
Heater, heating cold air provide warm wind, while but also high temperature coolant cools down to cockpit, are again introduced into increasing journey
In device engine.
Further, during the cooling circuit work, high temperature coolant enters radiator by thermostat, by electron wind
It after fan cooling, is returned in type range extender engine by expansion tank, completes cooling circuit.
Further, the coolant circulation loop can work independently.When a type range extender engine works independently,
The coolant circulation loop work of type range extender engine configuration, the coolant circulation loop of idle type range extender engine configuration
It does not work.When two type range extender engines work together, coolant circulation loop all works of two type range extender engine configurations
Make.
Further, the type range extender engine number at least two, the quantity of the coolant circulation loop and increasing
Journey device engine quantity is consistent.Specifically, the number of type range extender engine can be as needed, be set as two or two with
On, while be still each type range extender engine and a set of independent coolant circulation loop is configured, to realize efficient cooling, and
Warm wind can be provided when cockpit temperature is relatively low.
More type range extender engine cooling devices can need flexible when vehicle assembles according to the arrangement of type range extender engine
The different location of vehicle is arranged in, is connected between device by pipeline.
The present invention also provides a kind of pre-heating means based on more type range extender engine cooling devices, and specific method is as follows,
First start the first type range extender engine.
The temperature of the coolant of the first type range extender engine is detected, compared with set temperature.
When reaching set temperature, illustrate that present output power is insufficient, need to start the second type range extender engine.
Start electronic water pump, open simultaneously check valve, electronic water pump is by the high temperature coolant in the first type range extender engine
The second type range extender engine is pumped into, is preheated to the second type range extender engine, while the mixing temperature in the second type range extender engine
Coolant by check valve flow into the first type range extender engine in, formed preheating circuit.
The coolant temperature of the second type range extender engine is detected, compared with set temperature.
When reaching set temperature, illustrate to need preferentially to ensure cooling efficiency at this time, close electronic water pump and check valve so that
Preheating circuit is closed, and the first coolant circulation loop and the second coolant circulation loop respectively work independently.
It is the device have the advantages that as follows：
It, can be by the high temperature coolant in the type range extender engine first started 1. starts second type range extender engine
In the type range extender engine started after being introduced into, then by the coolant introducing of the mixing temperature in the type range extender engine of rear startup first
In the type range extender engine of startup, preheating circuit is formed, starts the preheating time of type range extender engine after shortening, plays energy saving subtract
Low consumed effect, drops in row.
2. the cooling device of the more type range extender engines of is respectively independent, each type range extender engine has that oneself is mating
Cooling circuit, therefore the radiating requirements of each type range extender engine can be met so that engine can be operated in efficient work
Make area.
3. the more type range extender engines of are at work, it can first start one of type range extender engine, according to required power
It is required that start second type range extender engine so that vehicle being capable of the different heavy burden demand of flexible adaptation.
4., compared with single type range extender engine cooling device with power, more type range extender engine cooling devices are being arranged
On it is more flexible, the different location of vehicle can be distributed in.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of schematic diagram of more type range extender engine cooling devices provided in this embodiment；
Fig. 2 is a kind of cooling circuit schematic diagram of more type range extender engine cooling devices provided in this embodiment；
Fig. 3 is a kind of warm wind circuit diagram of more type range extender engine cooling devices provided in this embodiment；
Fig. 4 is a kind of preheating circuit schematic diagram of more type range extender engine cooling devices provided in this embodiment；
Fig. 5 is a kind of method of startup preheating circuit based on more type range extender engine cooling devices provided in this embodiment
Flow chart；
Fig. 6 is a kind of method of closing preheating circuit based on more type range extender engine cooling devices provided in this embodiment
Flow chart.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, shall fall within the protection scope of the present invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicit includes one or more this feature.Moreover, term " first ", " second " etc. are the objects for distinguishing similar,
Without being used to describe specific sequence or precedence.
Embodiment 1, the present embodiment provides a kind of double type range extender engine cooling devices, concrete scheme is as follows：
A kind of double type range extender engine cooling devices, including：First coolant circulation loop, the second coolant circulation loop
And preheating circuit.
The first coolant circulation loop includes the first cooling circuit and the first warm wind circuit, first cooling circuit
For the first type range extender engine to be given to cool down, the first warm wind circuit is used to provide warm wind to cockpit.
The second coolant circulation loop includes the second cooling circuit and the second warm wind circuit, second cooling circuit
For the second type range extender engine to be given to cool down, the second warm wind circuit is used to provide warm wind to cockpit.
The preheating circuit includes check valve and electronic water pump, and the electronic water pump can be by the first coolant circulation loop
In high temperature coolant be pumped into the second coolant circulation loop, shorten the preheating time of coolant.
The cooling circuit includes thermostat, radiator, electronic fan and expansion tank, and the warm wind circuit includes thermostat
With cockpit heater.
As shown in the figure, Fig. 2 is cooling circuit, Fig. 3 is warm wind circuit, and Fig. 4 is preheating circuit.
Cooling circuit realizes efficiently cooling to type range extender engine, and warm wind circuit is cockpit when cockpit temperature is relatively low
Warm wind is provided.
Further, the first coolant circulation loop is provided high by electronic water pump to the second coolant circulation loop
Warm coolant preheating, the second coolant circulation loop provide the cold of mixing temperature by check valve to the first coolant circulation loop
But liquid forms preheating circuit.
As shown in Figure 1, thermostat, radiator, electronic fan, expansion tank and mechanical pump are sequentially connected with, formed effective cold
But circuit, while it also is provided with this warm wind circuit of thermostat, cockpit heater and mechanical pump.When driver feels cockpit
When interior temperature is relatively low, warm wind circuit can be started, warm wind is provided for cockpit while high temperature coolant is cooled down.Two increasing journeys
Device engine is connected by pipeline, and electronic water pump and check valve are equipped in pipeline, controls the flow direction of coolant so that in two increasings
Preheating circuit is formed between journey device engine.
Double type range extender engine cooling devices can need flexible when vehicle assembles according to the arrangement of type range extender engine
The different location of vehicle is arranged in, is connected between device by pipeline.
Further, double type range extender engine cooling devices are equipped with controller, for being started according to the power demand of vehicle
One type range extender engine starts two type range extender engines, selects the work side of double type range extender engine cooling devices
Formula.When the type range extender engine water temperature started in the ban is increased to set temperature, controller starts another type range extender engine, opens
Dynamic electronic water pump and open check valve, preheating circuit are opened.When after startup type range extender engine water temperature be increased to set temperature
When, controller closes electronic water pump and check valve, and preheating circuit is closed, and each type range extender engine cooling circuit works independently,
Improve cooling efficiency so that type range extender engine can preferably be operated in efficacious workaround.
Further, the high temperature coolant in the type range extender engine can enter cockpit heater, heat cold sky
Gas provides warm wind, while but also high temperature coolant cools down to cockpit, is again introduced into type range extender engine.
Further, during the cooling circuit work of the type range extender engine, high temperature coolant is entered by thermostat to be dissipated
Hot device after electronic fan cools down, is returned to by expansion tank in type range extender engine, completes cooling circuit.
Further, the cooling circuit that each type range extender engine is equipped with works independently.When a distance increasing unit starts
When machine works independently, the cooling circuit work of type range extender engine configuration, idle type range extender engine configuration cools back
Road does not work.When two type range extender engines work together, the cooling circuit work of two type range extender engine configurations.Double increasings
Journey device engine can be by two type range extender engines to power battery charging, and Power coverage area requirement is smaller, respectively
Independent cooling circuit disclosure satisfy that the radiating requirements of type range extender engine so that type range extender engine can be operated in efficient work
Make area, the cooling effect being optimal.
Specifically, the high temperature coolant in type range extender engine is shunted by thermostat, can be by radiator, can also
By cockpit heater, electronic water pump can also be passed through.When high temperature coolant passes through radiator, cooling circuit starts work
Make, electronic fan starts running according to water temperature signal, and sucking cold air enters radiator, by the heat band in high temperature coolant
Go out, achieve the purpose that cooling, pass through expansion tank through overcooled coolant, be pumped back in type range extender engine by machinery,
Meet the radiating requirements of type range extender engine, type range extender engine can be worked in the environment of constant temperature, keeps best work
Make state.
When cockpit needs to provide warm wind, high temperature coolant passes through cockpit heater, and heat exchange occurs with cold air,
So that warm wind is blown into cockpit, high temperature coolant can also cool down, be used in type range extender engine is returned to.It utilizes
Heat exchange principle can cause cockpit to obtain warm wind, coolant can also be made to cool down.
When vehicle needs double type range extender engine work, controller first starts one of type range extender engine to power
Battery charges, and the cooling device work of the type range extender engine, when vehicle needs more high-power, i.e., the distance increasing unit first started is sent out
When motivation coolant temperature is increased to set temperature, controller starts another type range extender engine, starts electronic water pump and opens
Check valve is opened, high temperature coolant is shunted by thermostat, and the type range extender engine started after being pumped by electronic water pump starts afterwards
The coolant of mixing temperature in type range extender engine is returned to by check valve in the type range extender engine first started, forms preheating
Circuit, the preheating time of the type range extender engine started after shortening.
Meanwhile when vehicle is in load condition, when required output power further increases, the distance increasing unit started afterwards at this time is sent out
When the temperature of motivation coolant has also been increased to certain temperature, controller is shut off electronic water pump and check valve, and closing preheats back
Road allows coolant circulation loop to work independently, and ensures the cooling efficiency of cooling device.It is different according to two type range extender engines
Working condition provides highly efficient cooling to each type range extender engine.
Double type range extender engine cooling devices can adapt to the different demands to engine output, be more suitable for picture
Existing as heavy-duty truck just has unloaded and fully loaded two different delivery situations when loading cargo, then also just have two
The different power demand of kind.Vehicle exports different power according to working condition, meets the load-carrying demand of vehicle, double distance increasing unit hairs
Motivation cooling device then adapts to different power demands and engine is cooled down, can be under different power demands
Keep good working order.
Embodiment 2, the present embodiment propose a kind of more type range extender engine cooling devices, and concrete scheme is as follows：
A kind of more type range extender engine cooling devices, including：First coolant circulation loop, the second coolant are recycled back to
Road, third coolant circulation loop etc., further include the first preheating circuit and the second preheating circuit etc..
The coolant circulation loop all includes a cooling circuit and a warm wind circuit, and the cooling circuit is used to give
Corresponding type range extender engine cooling, the warm wind circuit are used to provide warm wind to cockpit.
The preheating circuit includes check valve and electronic water pump, and the electronic water pump can start the distance increasing unit first started
In the coolant circulation loop for the type range extender engine that high temperature coolant in the coolant circulation loop of machine starts after being pumped into, contracting
The preheating time of short coolant.
The cooling circuit includes thermostat, radiator, electronic fan and expansion tank, and the warm wind circuit includes thermostat
With cockpit heater.
Thermostat, radiator, electronic fan and expansion tank are sequentially connected with as cooling circuit, realize efficiently cooling.Meanwhile
High temperature coolant can also pass through cockpit heater, form warm wind circuit.It, can when driver feels that cockpit temperature is relatively low
To start warm wind circuit, warm wind is provided for cockpit.
The coolant circulation loop can work independently, and start one, two or three type range extender engine, very
To type range extender engine cooling high temperature coolant respectively corresponding during more type range extender engines, cooling efficiency can be improved,
So as to fulfill efficient cooling.Meanwhile when vehicle load changes, journey is increased according to different power demand control by controller
The startup number of device engine controls the working method of cooling device, allows type range extender engine can be under optimum working temperature
Work.
A set of preheating circuit is equipped between two type range extender engines, the preheating circuit includes electronic water pump and check valve.
In the type range extender engine that high temperature coolant in the type range extender engine first started starts after being introduced into, the increasing journey that starts afterwards
Coolant in device engine can also be returned in the type range extender engine first started, formed preheating circuit, shortened extended-range
The preheating time of engine.
Further, when power is larger needed for vehicle, controller can cut off preheating circuit, start each distance increasing unit
The coolant circulation loop of machine works independently, according to the required different work requirements of each type range extender engine, coolant
Circulation loop realizes efficient cooling respectively.
Further, in more type range extender engine cooling devices, the coolant of mating type range extender engine is recycled back to
The number on road is consistent with the number of type range extender engine.
Embodiment 3, the present embodiment propose a kind of engine prewarming method based on more type range extender engine cooling devices, such as
It is the start-up course of preheating circuit shown in Fig. 5, it is specific as follows：
S1. first start the first type range extender engine.
When the output power needed for vehicle is smaller, such as during automobile zero load, it can first start a type range extender engine
Power is provided for automobile.
Whether the coolant temperature for S2. detecting the first type range extender engine reaches set temperature.
When coolant temperature reaches set temperature, illustrate that only starting a type range extender engine is difficult to load, at this time
It needs to start the second type range extender engine, the output power of bigger is provided.Such case may be that vehicle has certain heavy burden, and
It is not unloaded state.
S3. start the second type range extender engine.
When coolant temperature has reached setting, the power that the second type range extender engine of startup provides bigger for automobile is defeated
Go out.
S4. start electronic water pump while starting the second type range extender engine, open simultaneously check valve, electronic water pump is rapid
High temperature coolant in first type range extender engine is pumped into the second type range extender engine, is preheated for the second type range extender engine,
Shorten preheating time.Second type range extender engine is started to work rapidly, while also utilizes the heat of high temperature coolant
Amount so that heat will not scatter and disappear in vain, but can be recycled.
Coolant in second type range extender engine is returned to by check valve in the first type range extender engine, and composition preheats back
Road supplements coolant so that all type range extender engines are all operated in efficacious workaround for the first type range extender engine.
By the above method, a preheating circuit is formed between two type range extender engines, efficiently uses high temperature coolant
In amount of heat, shorten preheating time, achieved the purpose that energy-saving and emission-reduction.Simultaneously when preheating finishes, vehicle needs bigger
Power output when, need preferentially ensure coolant circulation loop operation, as shown in fig. 6, the closing process for preheating circuit.
S01. the coolant temperature of the second type range extender engine is detected, compared with set temperature.
Due to needing preferential guarantee cooling effect, while preheating circuit is started, coolant can flow through coolant and follow
Region other than loop back path so that coolant cannot flow back in time, and cooling effect is deteriorated.Therefore, it is necessary to monitor second in real time
The coolant temperature of type range extender engine, when temperature rise is to set temperature, judgement has been warmed up finishing at this time, needs preferential
Ensure cooling effect so that type range extender engine can be operated in efficacious workaround.
S02. electronic water pump is closed.Electronic water pump and check valve are closed, the second type range extender engine of cut-out to first increases journey
Access between device engine, the first type range extender engine of cut-out to the access between the second type range extender engine so that no longer
High temperature coolant is provided to the second type range extender engine.So that preheating circuit is closed, the first coolant circulation loop and second cold
But liquid circulation loop respectively works independently.
At this point, preheating has been completed, preheating circuit is closed, the coolant circulation loop independence work of each type range extender engine
Make, preferentially ensure cooling effect, the output power of bigger is provided for automobile.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of more type range extender engine cooling devices, which is characterized in that including：First coolant circulation loop, the second cooling
Liquid circulation loop and preheating circuit；
The first coolant circulation loop includes the first cooling circuit and the first warm wind circuit, and first cooling circuit is used for
It is cooled down to the first type range extender engine, the first warm wind circuit is used to provide warm wind to cockpit；
The second coolant circulation loop includes the second cooling circuit and the second warm wind circuit, and second cooling circuit is used for
It is cooled down to the second type range extender engine, the second warm wind circuit is used to provide warm wind to cockpit；
The preheating circuit includes check valve and electronic water pump, and the electronic water pump can will be in the first coolant circulation loop
High temperature coolant is pumped into the second coolant circulation loop, shortens the preheating time of coolant.
2. more type range extender engine cooling devices according to claim 1, which is characterized in that
The first coolant circulation loop provides high temperature coolant to the second coolant circulation loop by electronic water pump and preheats,
Second coolant circulation loop provides the coolant of mixing temperature by check valve to the first coolant circulation loop, forms preheating
Circuit.
3. more type range extender engine cooling devices according to claim 2, which is characterized in that further include：Controller is used for
The working method of more type range extender engine cooling devices is selected, starting the first coolant according to the power demand of vehicle is recycled back to
Road first starts the first coolant circulation loop, restarts the second coolant circulation loop.
4. more type range extender engine cooling devices according to claim 3, which is characterized in that when the first coolant is recycled back to
When the temperature of coolant is increased to set temperature in road, controller starts electronic water pump and open check valve, starts preheating circuit.
5. more type range extender engine cooling devices according to claim 3, which is characterized in that when the second coolant is recycled back to
When the temperature of coolant is increased to set temperature in road, controller closes electronic water pump and check valve, closes preheating circuit.
6. more type range extender engine cooling devices according to claim 1, which is characterized in that the warm wind circuit includes section
Warm device and cockpit heater；
High temperature coolant enters cockpit heater by thermostat, and heating cold air provides warm wind to cockpit, returns increasing
In journey device engine, warm wind circuit is formed.
7. more type range extender engine cooling devices according to claim 1, which is characterized in that the cooling circuit includes section
Warm device, radiator, electronic fan and expansion tank；
High temperature coolant enters radiator by thermostat, and after electronic fan cools down, distance increasing unit hair is returned to by expansion tank
In motivation, cooling circuit is formed.
8. more type range extender engine cooling devices according to claim 1, which is characterized in that the coolant circulation loop
It can work independently.
9. more type range extender engine cooling devices according to claim 1 to 8 any one, which is characterized in that distance increasing unit
The quantity at least two of engine, the quantity of the coolant circulation loop are consistent with type range extender engine quantity.
10. a kind of engine prewarming side of more type range extender engine cooling devices described in based on claim 1 to 9 any one
Method, which is characterized in that
First start the first type range extender engine；
The temperature of the coolant of the first type range extender engine is detected, compared with set temperature；
Restart the second type range extender engine；
Start electronic water pump, open simultaneously check valve, the high temperature coolant in the first type range extender engine is pumped by electronic water pump
Second type range extender engine；
The coolant temperature of the second type range extender engine is detected, compared with set temperature；
Close electronic water pump and check valve so that preheating circuit is closed, the first coolant circulation loop and the second coolant cycle
Circuit respectively works independently.
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| CN201711341651.7A CN108263202B (en) | 2017-12-14 | 2017-12-14 | Engine cooling device with multiple range extenders |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927534A (en) * | 2019-03-20 | 2019-06-25 | 天津大学 | A kind of heat management system and control method of hybrid power heavy motor truck |
| CN109969000A (en) * | 2019-05-08 | 2019-07-05 | 厦门市福工动力技术有限公司 | A kind of pure electric vehicle extended-range system |
| CN110043362A (en) * | 2019-04-01 | 2019-07-23 | 浙江吉利新能源商用车集团有限公司 | A kind of cold starting system for methanol vehicle |
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| CN109927534A (en) * | 2019-03-20 | 2019-06-25 | 天津大学 | A kind of heat management system and control method of hybrid power heavy motor truck |
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| CN110043362B (en) * | 2019-04-01 | 2020-07-24 | 浙江吉利新能源商用车集团有限公司 | Cold start system for methanol vehicle |
| CN109969000A (en) * | 2019-05-08 | 2019-07-05 | 厦门市福工动力技术有限公司 | A kind of pure electric vehicle extended-range system |
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